....without baring the details, a bit more info on when, where, whom may narrow the window and improve results? Hope you get the culprit - this is really not on, probably want to use it for a buggy build or so?

In God I trust. The masses are never right, the minority are sometimes right, but the truth is always right.
“One good teacher in a lifetime may sometimes change a delinquent into a solid citizen.” — Philip Wylie